Hydraulic elevator



T. P. CARSON.

HYDRAULIC ELEVATOR.

APPLICATION FILED AUG. I9. 192x.

wuM-'o@ ZZomms @van I j WW.,

61H01 new Patentd Apr, 18, 1922.

2 SHEETS-SHEET I.

T. P. CARSON.

HYDRAULIC ELEVATOR.

APPLlc/mou FILED Aums. 1921.

THOMJS l. CARSON, QF BRECKENRIDGE, TEXAS.

HYDRAULIC ELEVATOR.

Specieaton et Letters Patent.

' artented Ayr. 1S, 1922.

Application filed August 19, 192i. Serial No. 493,619.

T0 all 007mm. it 7710,11/ concern.'

lle it known that l, lllrroiims l); CARSON, a citizen of the UnitedStates, residing at Breckenridge, in the county of Stephens and State ofTexas, have invented certain new and useful lninrovemcnts .in llydraulieElevators; and l dolierehy declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appela tains to make and use the same.

This invention relates to new and useful improvements in fluid elevatorsand more particularly to a. device adapted to be used for lifting orraising oil and other liquids from wells or nits, the main object of thepresent invention being the provision. of a Huid elevator which isespecially adapter for use in renuwing oils from wells where thepressurer of gas whichis originally interniixed with the oils hasreduced to such an extent that the oil discontinues to flow freely fromthe well.

lt is a well known fact that as a Igeneral rule'after oil wells aredrilled in, there is sufficient pressure of gas in the Awell or`loeneath the oil to carry the oil to the top of the earth making whatis known as a gusher. After a continual flowffor a period oftime, thepressure of in the well is reduced so that the pressure is notsuliicient to carry the oil to the top of the well, thus necessitatingthe use of pumps or other` means for extracting` the oil from the welland as this pumping or extracting the oil from the well is comparativelyexpensive, it is one of the features of my invention to provide meanswhereby the pressure of gas still remaining in the well can he utilizedfor raising or removing the oil from the well at a comparatively smallexpense.

further object of this invention is the nrovisionvof a device adapted tober lowered into the usual well casing of a liuid well and so arrangedthat the slight pressure of gas remaining in the well will be caused toaccumulate until the pressure is suicient to carry the fluid to the topof the well through a reduced tubing inserted within the orig inalcasing.

lith the above and other objects in view the invention consists in thenovel features of construction, the combination and arrangements ofparts hereinafter more fully set forth, pointed out in the claims andshown. in the accompanying drawings in which:

Figure l is a longitudinal sectional view illustrating my invention inplace within. a well casing,

Figure Q is an enlarged transverse sectional view taken on the line 2-2of Figure l lligure 3 is an enlarged transverse sectional view talren onthe line 3 3 of Figure l.,

Figure is a longitinlinal sectional view taken through the 'plug or stoparranged within the casing to cause the accumulation of the pressure,and

Figure 5 is an enlarged longitudinal section taken through the guidewhich directs the oil into the .reduced tube arranged within theoriginal casing.

Referring` ynow more particularly to the dawings in which my inventionis fully illustrated the numeral l designates the usual tubing or casingarranged within the well through which the oil originally flows afterbeing drilled in and which also has previously served as a guide for thetools in the wells, said casing being closed at its upper end by meansof thecap 2, which has an outlet pipe 3 communicating with one sidethereof, provided with a valve 4: for the purpose of relieving thepressure of within-the casing l when desired. i After a well, known as agusher has ceased to flow through the means of the original gaspressure, it generally necessitates the application of a pump or othersuitable means for removing the oil from the well and as the means inuse at the present time and used heretofore has been so expensive thatthe profits of the oil have heen reduced to a minimum, it is the objectof my invention to irovide simple means adantedto be placed within thecasing l of the well for removing the oil still remaining in the well,or afterward accumulatingt As the vgas pressure in the well is notsufficient to carry the oil up through the original casing l, a tubinggenerally indicated, by the numeral 5 is inserted within the casing l soas to reduce the size of the outlet wherehy the pressure of gas whichwill be caused to accumulate within the casing 1 will be sutiicient tocarry the oil up through this tubing 5. This tubing 5 is inserted withinthe casing l and preferably extended illustrat i down to a pointadjacent the lower end ot the casing and provided at its lower end witha plurality ol openings 6 whereby the oil will readily pass into thetubing'. ln order to direct the oil and gas into the tubing 5 throughthe pertorations 6, a hood 7 herein shown as in the form ot an invertedtruncated cone7 is threaded on to the tubing, the larger end ot the hoodbeing; slightly smaller than the casing` l, so that the same can bereadily inserted within the casing. From this it will be noted that theoil and gas pressure will be for the n'iost part directed upwardlywithin the hood 'T and any gas or oil not passing in through theopenings 6 will be directed into the tubing 5 through the rar ialopenings 8 termed in the tubing 5 adjacent the upper end ot the hood. lnorder to reduce the flow ot oil and gas upwardly through the tubing` soas to create a greater pressure1 a nozzle member 9 is inserted withinthe tubing` 5 at a point within the hood 7, it being' preferred to havea section generally indicated by the numeral l inserted within thetubing 5said section carrying the nozzle 9. This section 10 is connectedto the tubing` at one end by means of the collar ll, while the other endot the section l0 is threaded into the sleeve 12 t'ormed at the upperend ot' the hood 7.

ln order that the gras may be caused to accnmulate within the casina` land directed b v means oi the bell 7 into the tubing` 5 "wherebysufficient pressure will be utilized to carry the oil up through thetubing- 5 to the surface ot the earth, a packing; member 13 is mountedupon the tubing!` 5 and .fitted within the ca-singr l so as to entirelylill the same and prevent any et the trom passing); upwardly through thecasi l,V unless the occasion should reduire. yllhis packing" member 13is si'i} ported in its proper vpositioii, preferably at a point abovethe hood 7, hy means ol a plate Il, which 'is welded o1' otherwisesecured to the tube 5. said plate beingr provided with a plurality ofopenings l5 arranged in arcijiale torni as l in Figure 21 and VYfurtherpro yvided with a stop lunf i6. Mounted upon the plate 114: is a secondplaie '1T having' a pluralitv ot openings 1.8 arran;i ,d in arcuatelinns. The plate 1'? is 'provided with un arcuate recess 197 in whichthe lunr 1G is arranged `whereby the plate 141- can be turned halfaround so as to bring the openings l5 and '18 into alinement to opencommunication .between the casing; l and a sleeve 20, which is arrangedwithin the packing member 13, or the plate la can be moved a halt aseoturn so that the (winnings l!) and IS will be disposed upon oppositesides olI the tube 5 to thus close any passageway between the twoplates.

'The sleeve 2O which is arraiiged within the pacirinp; member lil is eta slightly larger diameter than the tube 5 and in order to retain thepacking member l?) in position, a washer 2l is mounted upon lthe sleeve2l) hai/*ing` a jam nut 22 arranged ab re the washer and a lock nut 2?arranged above the jam nut, both ot said nuts being threaded upon thesleeve 2O to retain the p'acliii'igg; member 13 within its properposition within the casing l. This packing); menil'ier is preterablytermed ot rubber, leather or any suitable material. provided with theproper. amount oli Hexibility so that after the pacling` member has beenplaced in position within the casing` l., the am nut 2:2 and the 85lool; nut 23 can be manipulated against the the end of the packing)`member causing the side walls of the same to be forced tightly againstthe inner wall of the casing; whereby to prevent any escape ot thepressure up through the casino'. lt will also be noted that when thevalve plates Maand 17 are arranged so that the openings therein aredisposed upon opgiosite sides ot the tube 5, the gas pressure will notbe per mitted to pass upwardly within the casing l, but directed bymeans ot the hood i into the small tube 5 so that the accumulation ofpressure beneath the packing;- member l5 will be suihcient to carry theoil up through G the tube 5.

The sleeve Q0 is securely retained in position hy having the nuts 25threaded upon. the tube 5 and forced against a thrust bearing' E26, thuspreventing any upward movei105 nient on the part ol the sleeve 20. Theupper end et the tube 5 extends upwardly through the cap 2 andthesuitable thrust lfieariiuA 27 is arranged above the cap 2 to iiiermitrotation ot the tube 5 and it will. 110 be noted that upon rotation ofthe tube 5, the valve plate M- will. be rotated'so as to more theopenin. l.) thereoil into or out oit alinement with ie openings itl, ltwill api arent that tle plate lj? welded or cured to the sleeve l@ so'as to ct-ain the l'te in the ne relatire posiwith respect to the pa unamember e so thatwhen the tube rotated` thus impaitiirn` a rotarymovement to the plate lil:1 the openin s l5 'and 1S will be moved intoor out or alinement with each other, the lug;v 1G providing); a stop-fior the .move-- ment ot the plate 17, so that the plate 17 will notmove beyond its proper position to bring the openingsl and 18 intoalinement or move them' out of alinement. I further wish to emphasizethe fact that while a have shown and described al plurality of openingsl5 formed in the two 130 valve plates. asingle opening or any number olopenings may be used it desired, according to the pressure of gas in thewell in which my device is to be used.

ln the operation o't myv device, the tubing f 5 earuvine the hood 7 andthe packing meinber 13 in its assembled position shown in Figure l, islowered into the casing l toa .point in or just above the lower end ofthe casing, but the tube 5 may project below the bell 7 .into the fluidto be removed 'from the well and extend on to the bottom ot the well ,itdesired and any number of peirtoratious j lran be forined in the tube topermitthe oil to pass into the tube. The tube 5 then rotated untill thepassage through the openings i5 and 18 is closed. The pressure ot gaswithin the casingr l then accumulates below the pacringV member 13 untilthe pressure is sufficient to raisethe oil through the tubing 5, the oiland ,gas enteringr the tube 5 through the hood i' and the openings S inthe tubing. Should the prezissnre ot gas become so irreatthat it willout the oil and it is desired to relieve the pressure within the tubing5, the tube is rotated so to open communication between the valveplatesll and 17, bringing the openings l5 and 1.8 K4into Vali'nement,the pressure passing through these openings up throusg'hthe sleeve 2Oand out through the openings '28 formed in theV upper end ol the sleeve,said openings communicating with the casing l above the packing memberi3, thus the gas pressure will be permitted to pass upwardly by thepacking member 13 and out through the outlet pipe From this it will. beapparent that the gas pressure can be readily relieved when. so desiredand as soon as the pressure is back to its normal stato, the tube 5 isrotated to close communication between the casinaa l below the packingvmember 13 and the sleeve 2l) to'tlius again direct the ,cas pressureinto the tube 5 within the hood 7'.

'l l `found desirable, a suitable outlet pipe 29 may be connected to theupper end ot the tube 5 whereby the oil forced upwardly through the tubeby means oit the accumulation oi' the gas pressure within the casingmaybe conveyed to any desirable place.

ll wish it to be understood that while l have shown and describe l means'for utilizingr the remaining,` gas pressure. within a well, should thispressure become exhausted before the oil has been entirely drained fromthe well., or upon further accumulation oit oilwithn the well, gaspressure may be `forced into the casing. down through the sleeve 20 andpass downwardly beyond the hood "i, its only means olf escape being'upwardly through the hood into the tube 5 through the openings 8 andfrom this it will be apparent that suitable suction or pressure will beprovided for drawing thc oil trom the bottoni of the well il theoripjnal supply o t gaseous pressure has been exhausted from the well.

lill at I claim is:

l.. In a fluid elevator, the combination with a casing, of a tubearranged within the raising' havinga lower end constricted. to admit thefluid to the tube, means for admittine' gra-s pressure into the tubing,rabove the openings, means for diverting the gas pressure toward themeans oit admission into the tubing, additional means arranged within thY, casing;` above the admission openings for preventing` upward movementofi the pressure in thel easing' and means for relievine` the ,njaspressure trom the casingr upon the accumulation ot an excess pressure.

' 2. A device oi the class described, including in Combination with acasing, a tube arranged within the casing', said tube having' oi'ieningstherein for the admission ot iluid and pressure, means vtor directing'the pressure kinto the openinggs: provided thereto; a packingr memberarranged within the casing to prevent upward movement oi the gaspressure whereby to provide an accnnnilation ol E@as pressure 'forraising the Huid within the tube and means for relievthe pressure of gasupon the accumulation of an excess pressure.

3. A device oi' the class described, including in combination with acasing, a tube arrangesL vithin the casing),r havingnr openings in itslower end, a valve plate carried by the tube, a packing;r memberarranged within the easingr above the valve plate, a sleeve surroundingthe tube and arranged upon the interior ot the packing member, a. secondvalve plate carried by the sleeve and. mount ed upon the first valveplate, said valve plates havingr corresponding openings therein wherebythe turning movement of the tube will open or close said openings.

4i. .A device of the class described, including in combination with aeasing, a tube arranged within the easing having openings .in its lowerend toi' the admission ot fluid, said tube being; also provided withadditional openings1 a hood surrounding the tube tor directing` thegaseous pressure toward the additional openings and a noz- Zle arrangedwithin the tube having a reduced mouth portion disposed adjacent theoutlet of the additional openings whereby to create pressure passingupwardly into the tube and means for r Ignilating' the pressure ot ,traswithin the casingr tor raising the fluid withii'i the tube.

5. A. device ot the class described, including in combination with acasing, a tube arranged within the casingf having; openings in. itslower end, means carried by the tube for directing the gaseous pressureinto the tube, a packing member arranged within the casing, a valveplate carried by the tube beneath the packing member and a sleevearranged within the packing member and surrounding the tube, a secondvalve plate carried by the sleeve and cooperatingwith the first valveplate whereby to open and close communication between the casing belowthe packing member and the sleeve, said sleeve being` provided withoutlet openings at its upper end whereby turning movement of the tubewill rotate one of the valve plates to i open and close communication,between Jthe parts of the casing` above and below the packingmember.

6. A device of the class described, including in combination with acasing, a tube arranged within the casing, means admitting liuid and agaseous pressure into the tube, a packing member arranged within thecasing; above said means, a valve plate carried by the tube beneath thepacking member7 a sleeve arranged within the packing member andsurrounding the tube, a second valve plate carried by the sleeve andcooperating with the first valve plate, said sleeve having outletopenings at its upper end wherebyr turning movement ot the tube willopen or close communication between the parts of the casing` locatedabove and below the packq ing; member to relieve an excess accumulationof gas pressure below the packing member. 7. In a AHuid elevator, thecombination with a casing7 oi? a tube arranged within the casing; havinga liquid inlet, means arranged within said casing` above the inlet toretain gas pressure therein for forcing liquid into the tube through theinlet and manually operated means whereby to relieve the gas pressurefrom the casing upon accumulation of an excess pressure.

8. In a fluid elevator, the combination with a casing, of a tubearranged within the casing having inlet openings adjacent its lower end,means arranged within the cas- 'ing whereby to create a gas pressurewithin the casino' 'tor forcing the liuid through the inlet openingsinto the tubc,.means for di- ;ting the flow oit fluid into said openingsand means whereby to relieve the gas pressure from the casing' uponaccumulation of an excess pressure v 9. ln a device of the. classdescribed, the combination with a casing, of a .tube ar- `ranged within,the casing; having a liquid inlet7 said tube being provided withadditional openings, a hood surrounding the tube for directing thegaseous pressure toward the additional openingsand a nozzle arrangedwithin the tube having a reduced mouth portion disposed adjacent theoutlet of they additional openings whereby to create a pressure passingupwardly intothe tube.

ln testimony whereof I atlix my signature.

THOMAS P. CARSON.

